A is the right answer,please tell me why.
The two friends_____on the internet for three hours,and they would go on till the next morning.
A had been chatting B had chatted C were chatting D has been chatting
A 是对的,为什么不选其他的啊,原因和翻译中文
the terrorists might have planed a bomb on a plane in Athens,set to _____when it arrived in new york.
A get off B carry off C go off D come off
当然我知道C是正确答案,但是分别的意思和在句中的意思,全部翻译
the old man was sitting by riverside with his eyes___on the far-away ship.
A fixed B being fixed C fixing D fix
选择 A,告诉我原因和解释为什么不选其他的